<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="style.css">
    <title>书籍购物车</title>
</head>
<body>

    <div id="app"></div>

    <template id="my-app">
        <template v-if="books.length > 0 ">
            <table>
                <thead>
                    <th>序号</th>
                    <th>书籍名称</th>
                    <th>出版日期</th>
                    <th>价格</th>
                    <th>购买数量</th>
                    <th>操作</th>
                </thead>
    
                <tbody>
                    <tr v-for="(book, index) in books">
                        <td>{{index + 1}}</td>
                        <td>{{book.name}}</td>
                        <td>{{book.date}}</td>
                        <td>￥{{book.price}}</td>
                        <td>
                            <button :disabled="book.count <= 1" @click="decrement(index)">-</button>
                            {{ book.count }}
                            <button @click="increment(index)">+</button>
                        </td>
                        <td>
                            <button @click="removeBook(index)">移除</button>
                        </td>
                    </tr>
                </tbody>
 
                <tfoot>
                    <tr>
                        <td>总价格:</td>
                        <td colspan="5">￥{{totalPrices}}</td>
                    </tr>
                    
                </tfoot>
            </table>       
        </template>

        <template v-else>
           <h2> 购物车为空~</h2>
        </template>
    </template>

    <script src="../js/vue.js"></script>
    <script src="index.js"></script>

    
</body>
</html>